Triple
T797674
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Green Line (CTA) |
E17058
|
entity |
| Predicate | hasTerminus |
P388
|
FINISHED |
| Object |
Harlem/Lake station
Harlem/Lake station is the western terminal of the Chicago Transit Authority’s Green Line, located in the suburb of Oak Park, Illinois.
|
E171060
|
NE FINISHED |
How this triple was built (4 steps)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Harlem/Lake station | Statement: [Green Line (CTA), hasTerminus, Harlem/Lake station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Harlem/Lake station Context triple: [Green Line (CTA), hasTerminus, Harlem/Lake station]
-
A.
Harlem (O'Hare branch) station
Harlem (O'Hare branch) station is a Chicago Transit Authority rapid transit stop on the Blue Line serving the city's Northwest Side near the Kennedy Expressway.
-
B.
Harlem (Forest Park branch) station
Harlem (Forest Park branch) station is a Chicago Transit Authority rapid transit stop on the city's West Side serving the Blue Line’s Forest Park branch.
-
C.
Clark/Lake station
Clark/Lake station is a major Chicago 'L' transit hub in the Loop where multiple CTA lines intersect, providing extensive connections across the city.
-
D.
Branch Avenue station
Branch Avenue station is a Washington Metro rail station in Maryland that serves as the southern terminus of the system’s Green Line.
-
E.
LaSalle/Van Buren station
LaSalle/Van Buren station is a Chicago 'L' rapid transit stop in the Loop that serves multiple lines and connects to the nearby LaSalle Street commuter rail station.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Harlem/Lake station Triple: [Green Line (CTA), hasTerminus, Harlem/Lake station]
Generated description
Harlem/Lake station is the western terminal of the Chicago Transit Authority’s Green Line, located in the suburb of Oak Park, Illinois.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Harlem/Lake station Target entity description: Harlem/Lake station is the western terminal of the Chicago Transit Authority’s Green Line, located in the suburb of Oak Park, Illinois.
-
A.
Harlem (O'Hare branch) station
Harlem (O'Hare branch) station is a Chicago Transit Authority rapid transit stop on the Blue Line serving the city's Northwest Side near the Kennedy Expressway.
-
B.
Harlem (Forest Park branch) station
Harlem (Forest Park branch) station is a Chicago Transit Authority rapid transit stop on the city's West Side serving the Blue Line’s Forest Park branch.
-
C.
Clark/Lake station
Clark/Lake station is a major Chicago 'L' transit hub in the Loop where multiple CTA lines intersect, providing extensive connections across the city.
-
D.
Branch Avenue station
Branch Avenue station is a Washington Metro rail station in Maryland that serves as the southern terminus of the system’s Green Line.
-
E.
LaSalle/Van Buren station
LaSalle/Van Buren station is a Chicago 'L' rapid transit stop in the Loop that serves multiple lines and connects to the nearby LaSalle Street commuter rail station.
- F. None of above. chosen
Provenance (5 batches)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69a49378b9c48190adbf5f62e5b7aca1 |
completed | March 1, 2026, 7:28 p.m. |
| NER | Named-entity recognition | batch_69a4a7b342888190a344fe81a2c9f33c |
completed | March 1, 2026, 8:55 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ad1c88f89481908914e4f4c36cd009 |
completed | March 8, 2026, 6:51 a.m. |
| NEDg | Description generation | batch_69ad1cfdd8788190b3c9f6e0d49ec350 |
completed | March 8, 2026, 6:53 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ad1d75f4f8819090c397a4b2d3f839 |
completed | March 8, 2026, 6:55 a.m. |
Created at: March 1, 2026, 7:38 p.m.